Johann heinrich hermann yoss



I. H. H. VOSS.

AUTOMATIC RING PLATE VALVE.

AFPUCATION FILED JAN. 16. 1919.

1 343,534. Patented June 15, 1929.

y I M! A i i UNlll-ZD STAllES ibbom it comm: "llie it known t at I, Jomim Hemmer! Voss a citizen of Germany, resid. J 9 ing at Mount Vernon, Westchester county, "5 State of New York, have invented certain newana useful Improvements in Automatic Ring-Plate Valves, of which the following isa Specification.

@Tlns invention relates to automatic r' 1b plate valves for use in high speed gas an aii tompressors and the like, and is an imprpvement over existing valves of this class mtlie res t that it combines in one structhregthe ollowing principal features, to wit, Iii the'valve plate and its seating sprmg are unrestrained and wholly free from localized bending and hence from the crystallization otithe metal and early "fracture which results therefrom. 34b ,The housing of the valve ring plate and its ,seating spring is so designed that that I ntion. of the housing called the cap will gapf a comparatively located therein is of large mass and 35 great flexibility and is prefera 'orgcoiled spring arrangedin arcshape position and embedded in trenchlike grooves with recesses at each end. The springs a re inserted into the recesses by being com M, and released after insertion so that the ends are immovable when in operating position and only the center-part of the arcshap'ed coiled spring projects from the embedding ve to engage the ringplate. 86 f or object is to secure the ends of dis so that they cannot interfere with the ull lift of the valve by'working i between the cap seat and ring late and so thntthe springs cannot leave t eir embedl0 ding grooves and recesses even when they zi bmk,

And finally, the valve housi is designed todie made by the simplest naci lllllil'lg proci esses tu 'ndmg' an ri ing, an

l hence calf fiflfi l lofid at low cost.

'llhe preferred form of my invention, the seine being a valve structure possessing the combination of all of the aforesaid important features, is shown in the accompanying 0 drawings, wherein:

Figure 1 is an axial sectional view of an assembled valve;

Fig.2 is a plan view partly broken away Specification a! Letters Patent.

Amman filed January I, 1818. lerlal Io. 271,860.

w height, while the 1y a spiral PATENT. orrics.

am nnnmrcn HER-MANN voss, or moons vnnnon, new You aurom'rrc RING-PLATE vnvs.

Patented June 15, 1920.

Figs. 3, 4 and 5 are detailedsectional views showing diiferent types of springs.

The valve ring plate as here shown consists of two sections 1 and 2, of circular shape rovided with a central countersunk bolthoe adapted to receive a bolt 3 by which they may be clamped together, with the valve ring plates and their springs housed between them, and having appropriate external surfaces or shoulders 2' whereby the assembled parts may be clamped in the compressor structure.

Both valve sections are, or may be, simple castings, the section marked 2 forming the valve seat, and the other being the cap which retains the valve plates in position and provides also the embedding grooves and recesses forming the backing or abutment for the springs thereof.

For a multiportod valve of the kind bore shown, the seating part 2 is cast wilh port slots (5 of arr-unto i'orni arranged in two ronci'utrii' series suited to tho circular contour of tho fiil'llt'tlll l. The uppor or inner ends of all those port slots terminate at a common scat surface T which surface is :1 piano and h'cm-o easily produced in its iiiiishod form by ordinary tools. X\ pair of concentric vulvo ring plntos 5) are seated on this surface above the slots (5.

The (up section 1 is formed with flow slots 8 and apertures S in similar, parallel arrangement to the port slots 6, but oflset relatively.thereto, so as to cause the wall portions 10, between and at the side of said flow slots, to be disposed dirt-oily opposite to or over the port slots.

These portions of the cap section thus opposed to the port slots carry the springs 11 which hold tho valve plates on their seat, being formed to accommodate the springs with arcuate tronrhiiko grooves 12 therein, at whose opposite rods are recesses 13 in which the ends of the springs engage, the springs being compressed and bowed downwardly.- as shown, when in position.

The springs are shown in Figs. 2 and 3 as diminishing in size from the center toward the ends. The springs 11 may be spiral springs of well tempered steel. lieing unattached to any part but having their ends unmovably secured and having only a small fraction of their volume projecting from their embedding grooves and recesses,

. port these springs yield by bending uniformly throughout their entire length and not locally, these qualities being essential in any form of seating spring within this invention.

The valve plates are retained against lateral, or sliding displacement by lugs 15 formed on the underside of the cap section 1 and which act also as spacing members for the two sections.

\Vith this arrangement a light and strong construction is provided, and one in which there will be a minimum of wear on the parts due to rubbing action. The flow of gas past and around the ends and edges of the valve plates passes through the holes 8 as well as through the flow slots 8. It will be understood that various changes, substitutions, and modifications may be made in size and arrangement ofthe parts without departing from the invention as specified in the followin claims.

In Fig. 4.- have shown a type of spring, 20, difiering from the spring 11 in that it does not taper toward the end; while in Fig. 5 I have shown a spring made up of a one-piece flat ribbon spirally wound to form the sprin ends 21 and 22.

What claim as new and desire to secure by Letters Patent is 1. A valve of the type described, comprising, a seating section and a cap section secured together with a space between their adjacent faces, arcu ate ports formed in each section, .itheports in one section being olfset relatively to "those of the other section, a valve plate closingthe ports in the seating section, trenchlike, arcnate grooves with ad jtrLOIlt recesses formed in the cap .scction and serving to bow spirally coiled springs to engage said valve plates and keep the ends of the springs from interfering with the full lift of the said valve plates.

2. A valve oi the type described, comprising a seating section and a cap section secured together with a space between their adjacent faces, arcuate ports formed in each section and arranged in concentric relation, the ports in one section being oll'sct radially from those in thc other Sta-Hon, concentrically arranged valve plates closing the ports in the seating section. trcnchlike, arcshape rooves with flljill cnt recesses formed in the wall scction of said cap section serving to, embed spirally coiled springs compressed between the abutment surfaces of e Said rcccsscs. the ends of the springs being held immovable when in operating position to prcvcnt them from interfering with the full play of thc valve plates.

3. In a valve of the type specified, a cap scctipn and a seating secti n spaced apart, a

in said seating section, a valve disposed between said sections closing said port, and a spiral spring nested at its ends in said cap section and bowed outwardly to engage said valve to retain it on its seat.

l. In a valve of the type described, a cap section and a seating section, the cap section having a central boss and a series of radially disposed bosses whereby the sections are spaced apart, a bolt passing through the central boss and through the seating section whereby the two sections are secured together, ports formed in each of the sections, annular valve plates localized by the said radially disposed bosses covering the ports in the seating section and spiral springs nested at their ends in said cap section.

5. In a valve of the type specified, a cap section and a seating section, arcuate ports formed in each section and arranged in concentric relation, the ports in one section being offset radially from those in the other section, a pair of concentrically arranged valve plates covering the ports in theseating section, and a series of spiral springs engaging each of said valve plates to hold them imposition, said springs being carried in arcuate grooves in the cap section where by they are curved to contact with the valve plate.

6. In a valve of the type specified, a seating section and a cap section of circular shape, arcuate ports in each section, a valve plate concentric to the seating section covering the ports in the latter, trenchlike grooves with adjacent recesses formed in the cap section and serving to how the spirally coiled volute springs to centrally enga c said valve plate and keep the ends of tl ie springs from interfering with the full lift of the said Valve plates.

7. In a valve of the type described, a cap section and a seating section spaced apart, valve ring plates held between said sections, trenchlike grooves formedin said cap section, and sprin s the ends of which are held in recesses at t e ends of said grooves, said springs engaging said valve plates between their ends. c

8. In a valve of the type described, a cap section and a seating section spaced apart, valve ring plates held between said sections, trenchlike grooves formed in said cap section, and springs the ends of which are unattached and loosely held in recesses at the ends-of said grooves, said springs engaging said valve plates between their ends.

9. In a valve of the type described, a cap section and a seating, section spaced apart, valve ring plates held between said sections, trenchlike grooves formed in said cap section, and springs the ends of which are unattached and loosely held in recesses at the ends of said grooves, said springs engaging said valve plates between their ends, the whole being so arranged that the springs cannot leave said moves and recesses even in case of said springs being broken in use.

10. In a valve of the type described a cap section and a seating section spaced apart, valve ring plates held between said sections, trenchlike grooves formed in said cap sec- 5 tion, and coiled springs arranged in said grooves to beer on said plates in a, direction transverse to their length, whereby the clearance space may be reduced by lessening the height of the cap section.

In testmony whereof I have signed my 10 name to this specification this 3rd day of January, 1919.

JOHANN HEINRICH HERMANN VOSS. 

